LEV Testing

Our nationwide LEV testing service

Fume Control

Market leading fume control systems

LEV Design

Cost effective, efficient LEV system design

Service & Maintenance

Nationwide servicing & maintenance packages

Dust Control

Industry leading dust control systems

View all of our LEV related services

Need some help? Speak to our team

Metalworking Fluid (MFW) Control And Ventilation

A growing concern is the risk of occupational asthma, occupational hypersensitivity pneumonitis and other breathing problems from exposure to mist from metalworking fluids (MWFs). 

LEV Smoke Testing

LEV Fume Ventilation Experts

How can I protect my team from the risks of metalworking fluid?


COSHH Regulations 2002 require employers to carry out a suitable and sufficient risk assessment for those exposed to MWFs. The risk assessment should identify the measures required to ensure that exposure is either prevented or adequately controlled  (kept to a minimum). This means reducing inhalation of MWF mist to levels “as low as reasonably practicable” (ALARP).

To control exposure to MWFs effective engineering control, usually LEV is essential. Under COSHH Regulations the LEV must be suitably maintained, and also subject to statutory thorough examination & testing (TExT) at least once every 14 months. However, in itself, this is not enough, and additional measures should include:

  • Recirculating LEV systems should have a suitable high efficiency filter
  • Airflow indicators and or filter condition monitors should be fitted
  • Machines should be enclosed where practical
  • Establish concise details on the content of the MWFs
  • Door should be fitted with a time delay to ensure that the mist is cleared from the enclosure before the operator opens the doors, thus ensuring no mist enters the breathing zone
  • Ensure that the MWF delivery variables (e.g. volume and rate of flow to the tool, operating temperature and cutting tool speed) are set to minimise MWF mist
  • Ensure that a preventative programme is in place to inspect and maintain control measures such as LEV
  • Ensure that the LEV logbook is completed daily/weekly
  • Ensure operators are suitably trained, including reading the LEV user manual
  • Conduct health surveillance
  • Ensure MWF is correctly mixed & quality maintained

Generally speaking, water based MWFs create less mist than neat oils, however, all must be treated with caution.

HSE inspectors focus on how employers ensure workers are protected from exposure to fluid or mist generated by computer numerical control /CNC machines and that regular health checks are in place. There are three areas where manufacturing companies, particularly smaller companies, commonly fail on compliance: 

  1. Not having local exhaust ventilation 
  2. Not completing regular fluid quality checks 
  3. Failing to provide regular health checks for lung and skin conditions. 

At Impact, we are experienced in controlling MWF’s and are on hand to assist you. Call or email  us today to ensure compliance and full protection.


Working with industry organisations...

Self Contractor Approved
UKAS ISO 9001:2015 Quality Management Systems
Job Logic
SPA Safety Pass Alliance
SOTA Confined Space Training

A message from our Operations Director

Our team of LEV technicians and service engineers are second to none and do us proud daily. We guarantee you an outstanding service from start to finish!

LEV Design Engineer

Tony Bosworth

Operations Director

View the following HSE documents for more information:

HSG258 Controlling airborne contaminants at work

HSG258 – Controlling airborne contaminants at work


INDG408 Clearing the air

INDG408 – Clearing the air – A simple guide to buying LEV


INDG409 Time to clear the air

INDG409 – Time to clear the air: A workers pocket guide

INDG136 Working with substances hazardous to health

INDG136 – Working with substances hazardous to health

EH40 Workplace Exposure Limits

EH40:2005 – Workplace Exposure Limits


LEV Related Services

LEV Services


LEV Products




Your one stop shop

Why choose Impact

We are your one-stop-shop for all of your workplace dust, fume, vapour and oil mist extraction requirements.

We provide an unrivalled LEV testing, LEV system design, installation and maintenance service which is complemented with a wide range of dust, fume and oil mist extraction products, consumables, spares and parts.


30 years of nationwide coverage


P601, P602, P603, P604 qualified LEV technicians

Outstanding Service

We have a high percentage of returning customers


Experts in LEV project management


12 month warranty on all installations